1865 Major Henry Wirz, the superintendent of a prison camp in Andersonville, Georgia, is hanged, becoming the only American Civil War soldier executed for war crimes.
1945 Nuremberg Trials: Trials against 24 Nazi war criminals start at the Palace of Justice at Nuremberg.
1946 Former Prime Minister of Japan Hideki Tojo and 28 former Japanese leaders are indicted for war crimes.
1946 The International Military Tribunal for the Far East begins in Tokyo with twenty-eight Japanese military and government officials accused of war crimes and crimes against humanity.
1948 In Tokyo, an international war crimes tribunal sentences seven Japanese military and government officials, including General Hideki Tojo, to death for their roles in World War II.
1971 The Winter Soldier Investigation, organized by the Vietnam Veterans Against the War to publicize war crimes and atrocities by Americans and allies in Vietnam, begin in Detroit, Michigan.
1987 Klaus Barbie goes on trial in Lyon for war crimes committed during World War II.
1988 In Israel, John Demjanuk is sentenced to death for war crimes committed in World War II.
1998 A diplomatic conference adopts the Rome Statute of the International Criminal Court, establishing a permanent international court to prosecute individuals for genocide, crime against humanity, war crimes, and the crime of aggression.
1999 The International Criminal Tribunal for the former Yugoslavia in The Hague, Netherlands indicts Slobodan Milošević and four others for war crimes and crimes against humanity committed in Kosovo.
2001 Former President of Federal Republic of Yugoslavia Slobodan Milošević surrenders to police special forces, to be tried on war crimes charges.
2002 The trial of former President of Federal Republic of Yugoslavia Slobodan Milošević begins at the United Nations war crimes tribunal in The Hague. He dies four years later before its conclusion.
2009 The International Criminal Court (ICC) issues an arrest warrant for Sudanese President Omar Hassan al-Bashir for war crimes and crimes against humanity in Darfur. Al-Bashir is the first sitting head of state to be indicted by the ICC since its establishment in 2002.